<template>
    <div>
      <el-form
        :rules="rules"
        ref="loginForm"
        v-loading="loading"
        element-loading-text="正在登录..."
        element-loading-spinner="el-icon-loading"
        element-loading-background="rgba(0, 0, 0, 0.8)"
        :model="loginForm"
        class="loginContainer">
        <h3 class="loginTitle">系统登录</h3>
        <el-form-item prop="username">
          <el-input size="normal" type="text" v-model="loginForm.username" auto-complete="off"
                    placeholder="请输入用户名"></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input size="normal" type="password" v-model="loginForm.password" auto-complete="off"
                    placeholder="请输入密码"></el-input>
        </el-form-item>
        <el-form-item prop="code">
          <el-input size="normal" type="text" v-model="loginForm.code" auto-complete="off"
                    placeholder="点击图片更换验证码" @keydown.enter.native="submitLogin" style="width: 250px"></el-input>
          <img :src="vcUrl" @click="updateVerifyCode" alt="" style="cursor: pointer">
        </el-form-item>
        <el-checkbox size="normal" class="loginRemember" v-model="checked"></el-checkbox>
        <el-button size="normal" type="primary" style="width: 100%;" @click="submitLogin">登录</el-button>
      </el-form>
    </div>
</template>

<script>

export default {
  name: 'Login',
  data () {
    return {
      loading: false,
      vcUrl: '/verifyCode?time=' + new Date(),
      loginForm: {
        username: 'admin',
        password: '123',
        code: ''
      },
      checked: true,
      rules: {
        username: [{required: true, message: '请输入用户名', trigger: 'blur'}],
        password: [{required: true, message: '请输入密码', trigger: 'blur'}],
        code: [{required: true, message: '请输入验证码', trigger: 'blur'}]
      }
    }
  },
  methods: {
    updateVerifyCode () {
      this.vcUrl = '/verifyCode?time=' + new Date()
    },
    submitLogin () {
      this.$refs.loginForm.validate((valid) => {
        if (valid) {
          this.loading = true
          this.postRequest('/login', this.loginForm).then(resp => {
            this.loading = false
            if (resp && resp.code === 0) {
              // this.$store.commit('INIT_CURRENTHR', resp.obj)
              window.sessionStorage.setItem('user', JSON.stringify(resp.data))
              let path = this.$route.query.redirect
              this.$router.replace((path === '/' || path === undefined) ? '/home' : path)
            } else {
              this.vcUrl = '/verifyCode?time=' + new Date()
            }
          })
        } else {
          return false
        }
      })
    }

  }
}
</script>

<style>
    .loginContainer {
        border-radius: 15px;
        background-clip: padding-box;
        margin: 180px auto;
        width: 350px;
        padding: 15px 35px 15px 35px;
        background: #fff;
        border: 1px solid #eaeaea;
        box-shadow: 0 0 25px #cac6c6;
    }

    .loginTitle {
        margin: 15px auto 20px auto;
        text-align: center;
        color: #505458;
    }

    .loginRemember {
        text-align: left;
        margin: 0px 0px 15px 0px;
    }
    .el-form-item__content{
        display: flex;
        align-items: center;
    }
</style>
